Coke-drawing apparatus.



G. M. CLARKE. COKE DRAWING APPARATUS. APPLICATION rum) 00116, 1907.

Patented. Dec. 22. 1908.

2 SHEETS-SHEET 1.

lmeilfan G. M. CLARKE.

COKE DRAWING APPARATUS,

APPLIOATION rum) 00116, 1901.

Patented Dec. 22.

2 SHEETS-SHEET 2.

I. "Glow m: NORRIS PETERS 4:0 WASHlNc'rnN, o. c.

CHARLES M. CLARKE, OF PITTSBURG, PENNSYLVANIA.

COKE-DRAWING APPARATUS.

Specification of Letters Patent.

Patented Dec. 22, 190s.

Original application filed April 20, 1904, Serial No. 204,034. Divided and this application filed October 16, 1907.

Serial No. 397,650.

To all whom it may concern:

Be it known that I, CHARLES M. CLARKE, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Coke-Drawing Apparatus, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention re ates to apparatus for drawing coke from the oven, wherein a traveling structure is provided with a reciprocating beam having a rake or scraper adapted to be extended into and withdrawing from the oven to empty the contents therefrom.

The present application refers more particularly to the construction of the scraper or withdrawing tool; its mounting on the beam whereby it may fold backwardly underneath on entering the oven and upon making contact with the coke; to the means for imparting motion to the scraper or withdrawing tool independent of the beam, or when the beam is stationary; and for positively extending or unfolding the scra er to operative position, as more fu ly descri ed hereinafter.

The invention constitutes a portion of the subject matter and the present application is a division of my former ap lication filed April 20, 1904, bearing the S erial Number 204034, renewed October 21st, 1908, Serial No. 458885.

For the purpose of explaining one manner in which the rake beam is extended into and withdrawn from the oven, raised and lowered, adjusted laterally at varying angles to reach various ortions of the oven on the same horizontal p ane, or bodily transported from one oven to another of a series, reference may be had to any of the various patents issued to John A. Hebb, ty ical examples of which are embodied in U. Letters Patent 727790, 727942,?28101, 728102 and 749058, or to any other well-known prior constructions wherein these various movements are provided for.

It will be understood that the present invention does not particularly relate to such features, and the main operating portions will not, therefore, be herein particularly described, the present invention being confined to the withdrawing tool, its mounting on the reciprocating beam, and to the actuating means for the tool carried by the beam.

In the drawings :Figure 1 is a longitudinal sectional view of a coke-drawing machine embodying my improved rake beam. Fig. 2 is a longitudinal vertical sectional View of my improved rake beam for coke-drawing apparatus, partly broken away. Fig. 3 is a plan view of the rear end of the beam, showing the cylinder for reciprocating the rake. Fig. 4 is a partial sectional view similar to Fig. 1, showing the top of the rake thrown outwardly. Fig. 5 is a similar view showing the rake folded up underneath the beam in the position assumed in entering the oven. Fig. 6 is a horizontal sectional view on the line VI. VI. of Fig. 5. Fig. 7 is a cross sectional view on an enlarged scale through the beam and its driving pinion, indicated by the line VII. VII. of Fig. 1. Fig. 8 is a cross sectional View on an enlarged scale through the front end of the beam, taken on the line VIII. VIII. of Fig. 2.

Referring now to the drawings, the beam as shown consists of vertical longitudinal sides 67, 67, of angle shape or other desirable structural form, connected together in any convenient manner as by bolts or rivets, or by a top plate or upper portion 68 of any suitable form, or the beam may be of any other preferred construction. Such top element, if employed, provides a good bearing for the upper bearing roller or other guiding or bearing elements of the machine.

Between the sides 67 is secured a toothed rack 69 of suflicient length to give the necessary in-and-out travel of the beam, with which rack the driving pinion 25 engages, by which the beam is propelled in one direction or the other through the clutch-controlled driving shaft 24.

31 is the extracting tool in the form of a rake or scraper which is designed to be pivotally mounted at its top at the forward end of the beam, to allow it to fold backwardly and upwardly toward the under side of the beam in entering over the top of the coke through the restricted opening of the door. The pivotal su port or bearing of the top of the rake is ac justable independent of the beam, for which purpose I provide any suitable motor as a piston 70 mounted in a cylinder 71, located at any convenient portion-of the beam as at its back end. The cylinder is supplied at each end with steam, liquid, compressed air, or other suitable actuating medium through pipes 72, 73, connected with a controlling valve 74 mounted on the machine, provided with the usual operating handle and connected with any source of supply, as a boiler 75. The pipes 72, 7 3, may be of flexible hose or tubing, or may be provided with telescoping or swinging hinge joints to allow for the move ment of the cylinder 71. By this means the iston and its rod 76 may be reciprocated back and forth, and by connecting the piston rod 76 with the pivotal bearing of the rake 31, it will be seen that a to-and-fro movement may be imparted to its upper end. This movement is desirable for the purpose of working the edge of the scraper down into the crevices of the coke so as to cause it to engage a section before drawing it from the oven. It will be understood that during such manipulation of the rake, a downward pressure maybe exerted on the beam by means of the rollers 66 or other suitable demovement may be imparted through a cam,

crank, or lever-actuated reciprocating rod connected with the upper end of the rake, such mechanism being mounted on the beam and actuated through any mechanism which may be utilized to suit the design of the machine.

In the construction shown in the principal figures of the drawings, the rake is pivotally mounted by a pin or bolt 23 in the outer end of a sliding bar or shank 77 mounted between the sides 67, which may be turned in underneath as at 78 to provide a supporting base. Cross bolts 79 may also be used, passing through longitudinal slots 80 in the bar 77 and through the sides, thereby providing additional bearing elements and also serving to limit the longitudinal travel of the bar, if necessary, the piston rod 76 being connected with its other end.

'I he rake is provided with a bearing shoulder 81 adapted to abut against the end of the bar when-erected, so as to prevent further movement and to maintain the rake in downward engagement with the coke during the drawing operation. Otherwise the rake is gee to fold backwardly as clearly shown in Ordinarily, the rake will fall to operative position by gravity, but for the purpose of positively erecting it at any position of the beam, as when tilted, the bar 77 may be withdrawn, drawing the neck 82 of the rake backwardly against the front end 83 of the under plate 78, or against any other suitable abutment, thereby throwing the lower edge downwardly at approximately right angles or into working position with relation to the beam.

When the rake is lowered upon the coke its upper end is then thrown outwardly and backwardly somewhat rapidly, corresponding to the quick reciprocations of the beam of the I-Iebb patents, until it is in engagement with the coke, when outward movement is imparted to the beam and rake by pinion 25, thus drawing out the coke through the door.

It will be understood that I do not wish to be limited to any particular actuating, manipulating or traveling mechanism for performing the other necessary functions of an entirely operative cokedrawing machine, and it is obvious that my improvement may be embodied with various constructions, either mounted on ground or overhead tracks, within the province of the designing engineer.

Changes and variations may be made in the invention by the skilled mechanic, but all such are to be considered as within the scope of the following claims.

What I claim is 1. In a coke-drawing machine, a traveling beam provided with a movable shank carrying a pivoted extracting tool adapted to fold backwardly underneath the beam, and having a motor arranged to actuate the shank and said extracting tool.

2. In a coke-drawing machine, a traveling beam provided with a movable shank carrying a pivoted extracting tool adapted to fold backwardly underneath the beam, and having a motor arranged to actuate the shank to impart back-and-forth motion to the extracting tool to introduce it into the coke.

3. In a coke-drawing machine, a traveling beam provided at its operating end with a movable toolsupporting element, a motor mounted at the outer portion of the beam and operatively connected with said toolsupporting element, and an extracting tool pivotally mounted on said element and adapted to fold backwardly underneath the beam. 1.

4. In a coke-drawing machine, the combination with a longitudinally movable beam provided with a movable shank and a motor therefor, of an extracting tool pivotally mounted on the shank and adapted to be folded backwardly underneath the beam upon making contact with the coke while being inserted.

5. In a coke-drawing machine, the combination with a longitudinally movable beam provided with a motor, of an extracting tool pivotally mounted on the end of the beam and operatively connected with said motor,

adapted to be folded backwardly underneath the beam upon making contact With the coke While being inserted, and to be pulled downwardly into operative position.

In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES M. CLARKE.

Witnesses:

CHAS. S. LEPLEY,

RALPH B. SHUNKEY. 

